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imrrnn sin'rns rnrnnr ernten FURMAN D. SPEAR, 0F NEW YORK, N. Y.,ASSIGNOR TO ARMSPEAR MANUFACTURING COMPANY, 0F NEW' YORK, N. Y., ACORPORATION OF NEW YORK.

LAMP.

Specification of Letters Patent.

Patented Oct. 28, 1919.

Application led February 5, 1919. Serial No. 275,086.

templates the-use of an attachment which may be applied to a signal lampand which attachment is in the form of a clamp having an outwardlyHaring rim carrying the'glass.

Figure 1 is a side view showing a lamp embodying the improvements of myinvention.

F ig. 2 is a vertical sectional Vview on a larger scale showing thegoggle or lens attachment.

Fig. 3 is a perspective view of one of the attachment parts.

The main body 5 of the lamp may be of standard size `and provided with afixed goggle 6 which projects laterally from the body. rlhe attachment 7is suitably secured to this goggle and in turn carries the lens or glass8, which is materially larger in diameter than the goggle 6. Theattachment 7 is preferably formed of two parts as shown in F ig. 3, thelower part as indicated by reference 7 is similar to the upper part 7For convenience in manufacture and assembling the attachment has aflange 9 which may be notched and yieldingly engage the goggle 6. Eachpart of the attachment has lugs 10-10 and the lugs of the Vtwo parts areadapted to besecured together by bolts such as 11 passed through thelugs, so that the two parts are clamped on the goggle 6. Preferably theouter end of the goggle 6 is flared as at 6 so as to afford a betterseat for the attachment. A grooved band 12 is provided for securing thelens to the outer rim 13, of the attachment. 'The two ends of the bandmay be clamped together by a bolt 14 and a suitable yielding packing 15may be used to afford a yielding seat for the rim of the llens againstthe attachment.

By this construction it will be noted that more of the rays of light maybe utilized and a wider angle of dispersion is provided.

Copies of this patent may be obtained for In the preferred form of lampthe body is preferably formed of an upper part 5 and a lower part 5 withiianges such as 16 and 17 secured together by bolts 11 and 11 so thatthe parts may be more easily made and assembled and so that the partswill be interchangeable. By the construction herein disclosed, theattachment may be secured by the same bolts as those employed to fastenthe upper and lower parts of the body of the lamp together. I do notwish however to be limited to this specific form of construction.

By this means I am enabled to produce a standard signal lamp and toretain all the advantages of standardization, at the same time making itpossible to .utilize therewith lenses of different sizes withoutdisturbance of or injury-to the standard parts.

I claim:

1. In a lamp construction, a body having an outwardly projecting fixedgoggle, an

attachment formed in two parts, each part having two rearwardlyextending lugs, means for connecting the corresponding lugs to the -bodyat the rear of the fixed goggle and thereby clamping said attachment onsaid goggle, said attachment having an outwardly flaring rim forcarrying the lens.

2. An attachment for a signal lamp comprising two substantiallysemi-circular iange portions arranged to be detachably engaged with apart of the body of the lamp, each flange portion having an out wardlyflaring rim for supporting a lens, each flange portion also having tworearwardly extending lugs at its ends with bolts for connecting saidlugs to said body.

3. In a lamp construction, a body having an outwardly projecting fixedflange at one side, an extension goggle comprising two semi-circularfiange portions arranged to surround the fixed goggle, lugs projectingrearwardly from said flange portions with means for securing said lugsto the body of the lamp to the rear of the fixed goggle, and a clampingring for the outer edge of the extension goggle, said flange operating'to both hold the lens in place and to assist in holding the two portionsof the extension goggle in operative position.

FURMAN D. SPEAR.

ve cents each, by addressing the Commissioner of Patents. Washington, D.G.

